20. Okay

Jeanette has 150 acres of land suitable for cultivating crops A and B. The cost of cultivating crop A is $40 per acre, whereas that of crop B is $60 per acre. The farmer has a maximum of $7400 available for land cultivation. Each acre of crop A requires 20 labor hours, and each acre of crop B requires 25 labor hours. Jeanette has a maximum of 3300 labor hours available. If she expects to make a profit of $150 an acre on crop A and $200 an acre on crop B, how many acres of each crop should she plant in order to maximize her profit? Are any resources left over?